ORISMOLOGY. 357 



gross pollen, and in which it carries it. Ex. An- 

 drena a . 



5. CALCARATE (Calcarata). When it is armed with 



one or more spurs (Calcaria). Ex. The majority 

 of insects. 



6. EXCALCARATE (Excctlcarata}. When it has no such 



spurs. Ex. Apion. 



I. Foot (Tarsus}. 



1. SCOPULATE (Scopulatus). When the first joint on 

 the under side is covered with a dense brush of 

 rigid hairs. Ex. Apis, Andrena^ &c. b 



b. METATHORAX. 



1. SIMULANT (Simulans). When the mesothorax is 

 covered by the pro thorax, and the Metathorax only 

 is visible, under the form of an elongated or en- 

 larged scutellum. Ex. The Geocorisce. PLATE 

 XXVIII. FIG. 12. 



OC. POSTDORSOLUM. 



1. LATENT (Latens}. When it is covered by the me- 



sothorax ; it is then usually a mere membrane. 

 Ex. Most Coleoptera. 



2. EXPOSED (Apertus}. When it is not so covered. 



Ex. Atractocerus, Hymenoptera, &c. 



/3. POSTSCUTELLUM. 



1. DISTINCT (Distinctum). When the postscutellum is 

 distinct from the postdorsolum. Ex. Locusta. 

 PLATE VIII. FIG. 12. u'. 



a Mon. Ap. Angl. t. iv. **. c./. 14-*. a./. 12. 

 b find. t. \ilf.20. 



